I asked my father to look in his archives/records about at what time he actually bought the TI-99/4A console and the cartridges and how much they did cost back then in Austria.

He bought the basic console in Novemer of 1983 with one command module. He bought another command module in February 1984. In March 1983 he bought a tape recorder from ASAHI, a TI computer book, Extended Basic and several modules.